Whole-system duct and dryer vent check with before-and-after photos - you see exactly what came out of your vents
That "$99 whole-house special" is a bait ad - the real number appears once they are in your hallway, or the "clean" is a shop-vac at the register. We photograph the inside of your ducts before and after instead.
Before
After
Before
After
Before
AfterFast, Reliable Air Duct Repair Across Agoura Hills
Air duct repair in Agoura Hills usually means one of three things: a collapsed flex run, a disconnected joint dumping air into your attic, or duct board lining that’s deteriorated to the point it keeps shedding dust no matter how many times you clean it. Most jobs run between $390 and $1,850 depending on what we find when we scope the system. We’ve worked duct repair throughout Agoura Hills long enough to know the failure patterns here, and we’ll tell you exactly what’s wrong and what it costs before any work begins. Call (980) 447-2498 and we’ll schedule someone to look.
Why Linden Air Duct Cleaning Is Agoura Hills’s Preferred Air Duct Repair Company
Homeowners in Agoura Hills call us because we show up with a camera, not just a wrench. Before we quote a repair, we scope the duct interior and show you what we’re seeing. Collapsed flex runs look obvious on screen. So does ash film from the Woolsey Fire or a joint that’s been pulling apart for a decade. You get a written price before any tools come out of the van. You also get the tech’s name and photo before the visit, and they’ll show a photo ID at the door. It’s part of the Threshold Standard we’ve operated under since 2004 as part of the Threshold Group family, and it means you never open your door to an unverified stranger.
Marcus Veale, who leads our team, keeps the service standard simple: background-checked technicians, written guarantees on every repair, and a live person picks up the phone every time you call. No voicemail loops. No automated systems. If you call at 2 a.m. with an urgent duct problem in Agoura Hills, you get a human.
Ductwork Repair in Agoura Hills
Ductwork repair in Agoura Hills tends to mean patching and re-sealing aged sheet metal trunk lines and the flexible runs that branch off them. Homes here were mostly built between the late 1970s and mid-1990s as master-planned tracts, and a lot of that original flexible ductwork is now 30 to 45 years old. The outer foil layer splits, the inner liner tears, and the joints where sections meet lose their foil tape. When that happens, you’re heating and cooling your attic instead of your bedroom. A straightforward reseal and patch on an Agoura Hills system typically runs $390 to $780, depending on how many runs are involved and how accessible they are.
The repair work itself covers finding every leak, mastic-sealing the metal connections, replacing torn flex sections, and re-securing hangers that have let ductwork sag or fold. When we’re done, we run the system and re-test airflow at the registers. If a repaired section doesn’t hold, we come back free under the 365-Day Done Right Promise. That’s in writing on every job.
Duct Board Replacement
Some Agoura Hills systems don’t use flex for everything. Older installations in the hillside communities off Kanan Road and around Lake Lindero often have duct board plenums and transitions, which are rigid fiberglass panels. Duct board breaks down over time, especially when it’s been exposed to the dry, particulate-heavy air the Santa Ana winds push through the Conejo Valley. Friable fiberglass surfaces inside your air stream will keep releasing dust and fibers even after a professional cleaning. Replacing deteriorated duct board runs $600 to $1,400 depending on the section size and whether we need to fabricate custom transitions on-site.
Joint Sealing and Air Balancing
After 30 or 40 years, the original foil tape on Agoura Hills duct connections has dried, peeled, and failed. We regularly find supply runs that pulled away from the main trunk entirely, dumping conditioned air into unconditioned attic or crawl space. Resealing all accessible joints with mastic and testing again for even airflow across registers typically runs $340 to $620 here. During the test, we check which rooms are getting the right CFM and adjust dampers where they exist. A room that’s always been five degrees warmer than the rest of the house is usually a duct problem, not a thermostat problem.
Duct Replacement in Agoura Hills
Duct replacement in Agoura Hills means we remove the failed sections entirely and install new flex or rigid duct, and it’s the right call when your original runs are thoroughly collapsed, torn in multiple places, or contaminated internally beyond what cleaning can remove. Given the housing stock here, we replace a lot of original runs from the 1980s that have split inside where you can’t see it. A partial replacement covering a single zone or a handful of failed runs in Agoura Hills typically runs $850 to $1,850. Full system replacement is site-specific, and we price it on a written estimate after scoping the full duct layout with a camera.
We run negative-pressure extraction with HEPA filtration while any replacement work is underway, so the dust and debris we disturb during the swap doesn’t get pulled back through your air handler and into the living space. Every replacement we install in Agoura Hills gets mastic-sealed joints, proper hanger spacing, and a final airflow test. And the 365-Day Done Right Promise covers the new ductwork too. If a covered replacement fails, we return at no charge. That’s not a promotion. It’s the standing policy on every Linden repair.
Flex Duct Replacement
Homes in the master-planned neighborhoods between Kanan Road and Lake Lindero were largely built with insulated flexible duct, and when that duct collapses, it crushes the inner core so air can’t pass. We cut out the crushed section and install new R-6 or R-8 flex, sized to match the original design, then seal and strap the new run properly. Replacement for a typical 8 to 12 foot flex run in an Agoura Hills attic runs $180 to $420 including materials, mastic, and hangers.
Supply Plenum and Trunk Work
Some Agoura Hills systems need the main metal trunk or the supply plenum replaced rather than just branch runs. This happens when the original metal is rusted through in places (the dry air here doesn’t help, but roof leaks and condensation cycles are the bigger culprits), or when the duct design was never adequate for the home’s square footage. Trunk and plenum replacement is usually $1,200 to $2,800 depending on gauge, length, and whether the air handler has to be moved. We’ll show you the corrosion or damage on camera before you approve anything.
Trusted Brands We Service in Agoura Hills
Our techs work on and around most major HVAC and air-quality equipment found in Agoura Hills homes, and we stock common repair parts locally to keep turnaround fast. We run professional-grade negative-pressure extraction and HEPA filtration equipment from Nikro, and we service air-quality products including Honeywell and Aprilaire filtration systems, plus Abatement Technologies containment equipment when an Agoura Hills job needs isolation. That’s relevant because many post-Woolsey rebuilds and retrofits in this city upgraded to higher-efficiency filtration, and those systems need to be serviced by someone who understands how they integrate with the duct layout.
Common Air Duct Repair Problems We See in Agoura Hills Homes
- Collapsed flex runs from the original 1980s build. The inner core splits or crushes, and the system pushes air into the attic instead of the house. This is the single most common repair we scope on original Agoura Hills ductwork.
- Woolsey-era ash film inside duct board and flex lining. Homes that ran their HVAC during the November 2018 fire often pulled fine gray ash deep into the ducts, and if the lining is deteriorated, that ash keeps releasing into the air stream years later.
- Failed foil tape at joints and takeoffs. The adhesive oxidizes and dries out in our hot, low-humidity summers. Within 30 years, most original joints have separated enough to leak 20 to 30 percent of total airflow.
- Santa Ana-driven particulate loading on blower and evaporator components. The Conejo Valley funnels wind from the northeast, pushing chaparral dust and smoke through HVAC intakes at higher concentration than coastal cities. Seals and blower motors wear faster here as a result.
Pricing for Air Duct Repair in Agoura Hills, CA
A typical air duct repair in Agoura Hills runs $390 to $1,850, and the spread comes down to whether we’re sealing a few joints or replacing multiple collapsed runs. Resealing and patching usually lands between $390 and $780. Replacing a failed flex run or two often runs $180 to $420 per run. Duct board replacement starts around $600. A partial duct replacement covering one zone runs $850 to $1,850. What drives the price here is access, attic height, run length, and whether the damaged section is original 1980s material or was replaced after Woolsey. You’ll get a written price after we scope with a camera, before any work begins. Estimates are free. Call (980) 447-2498 for an exact quote.
We Also Serve Cities Near Agoura Hills
Our crews work throughout the Conejo Valley and western Los Angeles County, including Westlake Village, Oak Park, Calabasas, and Thousand Oaks. If you live in any of those communities and need Air Duct Repair, call the same number and you’ll get the same written-price and photo-badge standard. We serve Agoura Hills and the surrounding communities with the same live-answer phone line and the same 365-Day guarantee on every repair.
Serving Agoura Hills, CA - Our Local Coverage Area
We’re based in the Agoura Hills area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs About Air Duct Repair in Agoura Hills
If your HVAC ran during the November 2018 evacuation or in the days after, the answer is probably yes. Fine gray wildfire ash was drawn into return intakes and coated the interior of supply and return ducting in hundreds of surviving homes throughout Agoura Hills, particularly along the hillside streets off Kanan Road and neighborhoods east toward the Santa Monica Mountains. We still scope homes now that show a thin gray film inside original duct board liner. That’s why our first intake question here is “did your system run during Woolsey?” If it did and you’ve never had the duct interiors scoped, call (980) 447-2498 and we’ll check before recommending any repair.
Cleaning removes built-up dust, but it can’t repair a collapsed flex run, reconnect a joint that’s pulled apart, or restore duct board that’s deteriorated to the point of releasing fibers back into the air stream. In Agoura Hills specifically, we see a lot of houses where the ducts are simultaneously dirty and mechanically failed. Cleaning alone would be like vacuuming a car with a broken door seal and expecting the cabin to stay clean. We’ll scope the system, show you the damage, and quote the repair only if it’s needed. A repair quote includes a written price and the 365-Day Done Right Promise with a free second visit if the fix doesn’t hold.
They push dry, particulate-heavy air through outdoor HVAC intakes for days at a time, every fall and winter, at higher concentrations than cities just 15 miles toward the coast. That forced particulate load accelerates wear on blower seals, motor bearings, and duct joints. Combined with the fact that Agoura Hills gets no reliable marine layer to buffer that air, it’s one reason our duct joints and seals fail faster than they do in flatland suburbs. We recommend homeowners here have their duct joints and blower compartment inspected annually after the first big Santa Ana event. Call (980) 447-2498 and we’ll schedule it.
It involves more attic access planning and often steeper roof pitch under the duct runs, which matters because the work has to be done carefully and you need the right ladders, harness points, and drop cloths. In the hillside communities off Kanan Road, many homes have part of their duct system in a sloped or confined attic space that isn’t fully standable. We plan those jobs for longer time blocks and use containment barriers so we’re not dragging debris through the living space. The repair itself is the same: scope it, find every failed joint and collapsed run, replace or repair as needed, seal everything to NADCA standards, and test airflow at the registers. The difference is that we’re honest about the extra time and care a hillside home takes, and you’ll see that reflected in the written price before we start.
If we find multiple collapsed runs, internal damage along more than about 30 percent of the system’s total run length, or duct board that’s deteriorated through its structural face, replacement is usually the cheaper and longer-lasting fix than repeated patching. One torn section is a patch job. Three crushed runs, a rusty trunk, and leaking plenums on a 1983 system likely aren’t. We’ll show you the scoped video and tell you straight which way makes sense for your house and budget. Replacement work through Linden carries the same written guarantee and free second visit if anything fails within 365 days. Call (980) 447-2498 for an honest, no-pressure assessment.
Call Linden Air Duct Cleaning for Duct Repair in Agoura Hills, CA
When something’s wrong with your Agoura Hills ductwork, you want a straight answer about what it is and what it costs to fix. You’ll get that from us. We’ll schedule a scope, show you the damage on camera, and put a written price in your hand before any work starts. No surprises at the end. Every repair is backed by our 365-Day Done Right Promise, which means if it isn’t right, we make it right. Call (980) 447-2498 for a free estimate. A live person answers, day or night.
Written by Marcus Veale, Owner at Linden Air Duct Cleaning, serving Agoura Hills since 2004.